The company also announced the recent promotions of Curtis Hecht to Senior Vice President, Business and Corporate Development, and Jennifer McNealey to Vice President, Investor Relations and Strategy.

Mr. Hecht joined Calithera in April 2014, and has worked in the biopharmaceutical industry for over 20 years.

Most recently he served as Vice President of Business Development at inVentiv Health. He also served as a partner of DNA Ink, and managed the Roche-Genentech joint development and operations committee.

Ms. McNealey joined Calithera in February 2015.

Before joining Calithera, Ms. McNealey served as an investor relations advisor to biotechnology companies. She also founded Laurient, an independent research firm, and prior to that she served as a biotech analyst and portfolio manager.

Following Mr. Waddill's departure, Susan Molineaux will become the company's Principal Financial Officer and assume Mr. Waddill's administrative responsibilities, and Stephanie Wong, the company's Vice President Finance since April 2014, will become the company's Principal Accounting Officer.

Mr. Waddill's resignation will be effective on or about December 31, 2016 in order to facilitate a smooth transition.